Furnace dust handling apparatus



F. B. ALLEN Aug. 23, 1932.

FURNACE DUST HANDLING APPARATUS Filed Aug. 21. 1930 gwwnto o PEA/VA B AZZE/V l atented Aug. 23, 1932 FRANK B. ALLEN, OF LOWER VANIA, ASSIGNOR TO THE amnion 'rownsnrr, MONTGOMERY COUNTY, rENNsYL ALLEn-snnnMA -norr COMPANY, on CPHILADELII-IIA,

PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA rommcn nus'r HANDLING .ArrAaArus Application filed August 21, 1930. Serial No. 476,733.

This invention has to do with apparatus for handlingrefuse in dust form, such as comes from the dust chute of a furnace'or which is created in precipitating operations,

or that encountered in the use of mechanical stokers.

The invention has in view the provision of apparatus for receiving and storing dust from devices such as are above noted and 0 which may be operated at intervals to remove the accumulated clust without admitting air drafts in harmful amounts to the devices.

More particularly, I propose to provide a device including suitable means for afiixing the same to a dust chute or the like and which device houses gate mechanism for shutting off a part of the device for accumulating the dust therein. It is my idea to operate the gate mechanism when it is desired to remove the dust. The. invention further'contemplates the provision of means for injecting a hydraulic stream into the housing of paratus to wash away the accumulated dust. Other more detailed features will become apparent as the description of the invention proceeds. For a full and more complete understanding thereof, reference may be had to the following description and accompanying drawing, wherein,

Figure 1 is a plan view of apparatus made in accordance with this invention.

Figure 2 is a view in side elevation of the construction shown in Figure 1, certain parts being brought out in dotted lines and Figure 3 is an end elevation of the same construction.

Referring now to the drawing my novel dust handling equipment comprises a main casting A. This casting is formed with an inlet opening designated 1 and this opening is surrounded by a flange 2 having bolt holes 3 which constitute a means for connecting the casting to a dust chute or the like. An outlet opening 4 is also provided and this opening is surrounded by a flange 5 having bolt holes 6. The flange 5 and holes 6 are a means for connecting the casting A with any suitable discharge apparatus.

The casting A is formed with a curved front wall portion as shown at 7 A shoulder thicker portion is providedat 8 and the portion of casting.

A between the curved wall 7 and 'shoulder'8 receives the dust which accumulates therein. Disposedin'the same plane with the shoulder 8 is a wall portion 9 and the partsSand 9 definea gate opening 10. A gate 11 is car r'ied by a shaft 12 which has bearing in the casting A. from an arm 18, anoing'weight 14. to" hold the gate This shaft 12 has projecting therewhich carries a 'counterbah The latter normally tends 11 in closing position, but

when swung past the center line it maintains the gatell upraised in a position leaving the openlng 10 unrestricted.

The shaft 12 also carries a double ended arm 15 to each'fend of'whichis aifixedone' end of a chain 16. The arm 15 and chain 16 constitute a means vfor operating the gate 11 into open or closed position while the counterbalance 1A maintains the gate in either position.

The casting A is formed with a large rectangular opening above the gate and this opening is normally closed by a detachable cover 17 which is held in position by the flange and bolt construction referred to as 18. The cover 17 may be removed to perform any necessary repairs or adjustments in the gate mechanism and of course facilitates the assembly of these parts.

One end of the casting A is plane as shown at 19 and this end is provided with a slightly 20. This portion 20 is provided with nozzle tips 21 for connecting hydraulic lines to the casting for a purpose to be hereinafter more fully set forth.-

One side of the casting A is formed with an inspection opening 22 which is normally sealed by a door 23 which is hinged at 24:. v

In practical use the foregoing construction operates as follows: Dust from the chute or other source passes through the inlet openin 1 into the casting between the curved wall and gate 11 which is closed. The dust accumulates in the casting during a considerable period of time and is then removed there from. The removal of the accumulated dust is accomplished by opening the gate 11 and admitting hydraulic streams through the nozzles 21. These streams eat into the bank of dust and gradually wash it away out through the discharge opening 4 to any suitable place or discharge apparatus. When the dust has been substantially removed so that the streams hit the curved wall 7 the latter bends the streams back to thoroughly clean out the casting. It is notable that the bottom of the casting is slightly inclined as shown at 25 to insure the running out of all of the hydraulic medium and dust carried thereby.

What I claim is- In a furnace dust handling apparatus, a member adapted to be attached to a dust collecting receptacle and defining an air tight dust receivlng and storage space, a dust disposal sewer adjacent said receiving and storage space, a gate pos1t1oned within said member separating the dust receiving and storage space from the dust disposal sewer, means exteriorly of the member for operating the gate, there being an opening in said member at one end thereof, a nozzle projecting through said opening and adapted to discharge a liquid into said member and across the same, the other end of said member havinga curved wall a portion of which is reversed upon itself to facilitate flushing of the member by the fluid discharged from said nozzle.

In testimony whereof I hereunto affix my signature this 15th day of August, 1930.

FRANK B. ALLEN. 

